---
product_id: 21893184
title: "5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion"
brand: "preamer"
price: "€ 19.83"
currency: EUR
in_stock: true
reviews_count: 13
category: "Preamer"
url: https://www.desertcart.sk/products/21893184-5pcs-u-groove-pulley-roller-wheels-with-deep-groove-ball
store_origin: SK
region: Slovakia
---

# Whisper-quiet nylon rollers Heavy-duty steel core Dual-shielded ball bearings 5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion

**Brand:** preamer
**Price:** € 19.83
**Availability:** ✅ In Stock

## Summary

> ⚙️ Glide into smooth efficiency with silent strength!

## Quick Answers

- **What is this?** 5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion by preamer
- **How much does it cost?** € 19.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/21893184-5pcs-u-groove-pulley-roller-wheels-with-deep-groove-ball)

## Best For

- preamer enthusiasts

## Why This Product

- Trusted preamer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Powerful:** Sized at 8x30x10mm with a 200 lbs max load—small footprint, big impact on your mechanical setups.
- • **Maintenance-Free Shielding:** Dual-sided bearing shields lock in lubricant and block dust, minimizing upkeep and maximizing uptime.
- • **Engineered for Silent Precision:** Glide smoothly with ultra-quiet nylon wheels that keep your space peaceful and professional.
- • **Versatile Fit for Every Project:** Perfect for sliding doors, windows, gym cable systems, and even DIY 3D printers—adaptability meets performance.
- • **Built to Last with Heavy-Duty Steel:** Robust steel core bearings ensure maximum durability and rust resistance for long-term reliability.

## Overview

The Preamer 5PCS U-Groove Pulley Roller Wheels combine high-quality nylon and steel core ball bearings to deliver whisper-quiet, heavy-duty performance. Designed for sliding doors, windows, gym cable systems, and more, these 8x30x10mm rollers feature dual-shielded bearings for low maintenance and a 200 lbs max load capacity, backed by a 3-year warranty.

## Description

Preamer 5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion: desertcart.com: Industrial & Scientific

Review: Still work perfect - Quality, price, Availability,
Review: They were priced perfectly and worked great! - We used these to build a Roman Curtain style rig for raising/lowering a projection screen in a recent Community Theatre production. I used them to replace the noisy metal wheel that was in the pulleys we purchased at Home Depot. They were priced perfectly and worked great!

## Features

- [Material & Durability] Crafted with high-quality nylon and robust steel core roller bearings, these wheels ensure exceptional wear resistance and anti-rust performance. Designed for long-lasting use, they provide a sturdy foundation for your daily mechanical needs without frequent replacements.
- [Smooth & Whisper-Quiet Operation] Engineered for minimal friction, these rollers glide effortlessly along the track. Whether used as rv shower door rollers or in home furniture, they significantly reduce noise, offering you a peaceful and comfortable environment every time you slide the door.
- VERSATILE APPLICATIONS FOR HOME & INDUSTRY: These versatile guide pulleys are ideal for a wide range of applications. Whether you are upgrading sliding glass doors, aluminum windows, furniture hardware, or building DIY home gym cable systems and 3D printers, these rollers deliver consistent and stable performance.
- SECURE SHIELDING & LOW MAINTENANCE: The internal bearings are shielded on both sides to effectively keep lubricants in and prevent dust or debris from entering. This thoughtful design minimizes the need for frequent maintenance while maintaining high-speed, low-noise operation for extended periods.
- Product Size: 8mm/0.3"(ID)*30mm/1.2"(OD)*10mm/0.4"(Thickness),U groove Size: 6mm/(Width)*3mm(Depth).5 pcs.(3 Years Warranty).Max-Loading:200Lbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B014884ZYG |
| Bearing Number | 608ZZ |
| Bearing Type | Roller Bearing |
| Best Sellers Rank | #94,642 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #460 in Deep-Groove Ball Bearings |
| Brand | Preamer |
| Brand Name | Preamer |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.4 out of 5 stars 152 Reviews |
| Item Dimensions | 1.18 x 1.18 x 0.39 inches |
| Item Thickness | 10 millimeters |
| Item Weight | 1.12 ounces |
| Item dimensions L x W x H | 1.18 x 1.18 x 0.39 inches |
| Manufacturer | Preamer |
| Material | POM, Steel |
| Material Type | POM,Steel |
| Model | HU-0830-10 |
| Number of Items | 5 |
| Number of Packs | 5 |
| Outside Diameter | 30 millimeters |
| Part Number | 8186738 |
| Specification Met | ABEC 1 |
| UPC | 711301729988 740690520654 |
| Unit Count | 5 Count |
| Warranty Description | 3 Years |

## Product Details

- **Bearing Number:** 608ZZ
- **Brand:** Preamer
- **Item Weight:** 1.12 ounces
- **Item dimensions L x W x H:** 1.18 x 1.18 x 0.39 inches
- **Material:** POM,Steel

## Images

![5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion - Image 1](https://m.media-amazon.com/images/I/61qqO-i60-L.jpg)
![5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion - Image 2](https://m.media-amazon.com/images/I/71Yx0jTQyML.jpg)
![5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion - Image 3](https://m.media-amazon.com/images/I/71s7Q+PxCeL.jpg)
![5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion - Image 4](https://m.media-amazon.com/images/I/71v+SOlX1+L.jpg)
![5PCS U-Groove Pulley Roller Wheels with Deep Groove Ball Bearings, 8x30x10mm Silent Nylon Guide Track Rollers for Sliding Doors, Windows, and Gym Cable Systems, Heavy Duty & Smooth Motion - Image 5](https://m.media-amazon.com/images/I/71ati+IdakL.jpg)

## Questions & Answers

**Q: What size is the bolt hole?**
A: 5/16” threaded bolt with a lock washer has worked very well for me.

**Q: What size is the bolt hole?**
A: It's a 608 bearing, so the inner diameter is 8mm. http://www.gizmology.net/bearings.htm (It mounts on an M4 bolt)

**Q: I would like to know the weight that these pulleys support**
A: I don't know. I used them for my son's robotics team

**Q: Is there a load capacity on these if you are using them as a pulley?**
A: There probably is, the Plastic outer would be the limiting factor as excessive weight would make the cable or rope cut into the plastic.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Still work perfect
*by B***H on July 15, 2026*

Quality, price, Availability,

### ⭐⭐⭐⭐⭐ They were priced perfectly and worked great!
*by S***T on November 10, 2017*

We used these to build a Roman Curtain style rig for raising/lowering a projection screen in a recent Community Theatre production. I used them to replace the noisy metal wheel that was in the pulleys we purchased at Home Depot. They were priced perfectly and worked great!

### ⭐⭐⭐⭐⭐ Fix Your Mast Pulleys...
*by K***N on October 15, 2017*

Used this to fix pulleys on a sail boat mast, they worked great! Quality seems good...

## Frequently Bought Together

- Preamer 5PCS 8x30x10mm Nylon Round Plasic Pulley U Groove Track Roller Bearing Pulleys Wheel Roller for Sliding Door Window Lifting Systems, Double Shielde 608zz Bearing Inside
- Prime-Line D 1798 1-1/4 In. Nylon Ball Bearing, Sliding Door Roller Set (2 Pack)
- uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearing 5x25.5x8.5mm U Groove Roller Wheel for Door Window, Blue

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/21893184-5pcs-u-groove-pulley-roller-wheels-with-deep-groove-ball](https://www.desertcart.sk/products/21893184-5pcs-u-groove-pulley-roller-wheels-with-deep-groove-ball)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-17*